JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Objectives

The course objectives are:

• To prepare students to excel in basic knowledge of satellite communication principles
• To provide students with solid foundation in orbital mechanics and launches for the satellite communication
• To train the students with a basic knowledge of link design of satellite with a design examples.
• To provide better understanding of multiple access systems and earth station technology
• To prepare students with knowledge in satellite navigation and GPS & and satellite packet communications.

Course Outcomes

At the end of the course,

• Students will understand the historical background, basic concepts and frequency allocations for satellite communication
• Students will demonstrate orbital mechanics, launch vehicles and launchers
• Students will demonstrate the design of satellite links for specified C/N with system design examples.
• Students will be able to visualize satellite sub systems like Telemetry, tracking, command and monitoring power systems etc.
• Students will understand the various multiple access systems for satellite communication systems and satellite packet communications.

UNIT - I

Introduction: Origin of Satellite Communications, Historical Back-ground, Basic Concepts of Satellite Communications, Frequency Allocations for Satellite Services, Applications, Future Trends of Satellite Communications. Orbital Mechanics and Launchers: Orbital Mechanics, Look Angle determination, Orbital Perturbations, Orbit determination, Launches and Launch vehicles, Orbital Effects in Communication Systems Performance.

UNIT - II

Satellite Subsystems: Attitude and Orbit Control System, Telemetry, Tracking, Command And Monitoring, Power Systems, Communication Subsystems, Satellite Antennas, Equipment Reliability and Space Qualification.

R16 B.TECH ETE

UNIT - III

Satellite Link Design: Basic Transmission Theory, System Noise Temperature and G/T Ratio, Design of Down Links, Up Link Design, Design Of Satellite Links For Specified C/N, System Design Examples. Multiple Access: Frequency Division Multiple Access (FDMA), Intermodulation, Calculation of C/N, Time Division Multiple Access (TDMA), Frame Structure, Examples, Satellite Switched TDMA Onboard Processing, DAMA, Code Division Multiple Access (CDMA), Spread Spectrum Transmission and Reception.

UNIT - IV

Earth Station Technology: Introduction, Transmitters, Receivers, Antennas, Tracking Systems, Terrestrial Interface, Primary Power Test Methods.

UNIT - V

Low Earth Orbit and Geo-Stationary Satellite Systems: Orbit Considerations, Coverage and Frequency Consideration, Delay & Throughput Considerations, System Considerations, Operational NGSO Constellation Designs. Satellite Navigation & Global Positioning System : Radio and Satellite Navigation, GPS Position Location Principles, GPS Receivers and Codes, Satellite Signal Acquisition, GPS Navigation Message, GPS Signal Levels, GPS Receiver Operation, GPS C/A Code Accuracy, Differential GPS.

TEXT BOOKS:

• 1. Satellite Communications – Timothy Pratt, Charles Bostian and Jeremy Allnutt, WSE, Wiley Publications, 2nd Edition, 2003.
• 2. Satellite Communications Engineering – Wilbur L. Pritchard, Robert A Nelson and Henri G.Suyderhoud, 2nd Edition, Pearson Publications, 2003.

REFERENCES:

• 1. Satellite Communications: Design Principles – M. Richharia, BS Publications, 2nd Edition, 2003.
• 2. Satellite Communication - D.C Agarwal, Khanna Publications, 5th Ed.
• 3. Fundamentals of Satellite Communications – K.N. Raja Rao, PHI, 2004
• 4. Satellite Communications – Dennis Roddy, McGraw Hill, 4th Edition, 2009. R16 B.TECH ETE